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 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
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package org.openjdk.jmc.ui.formpage.commands.internal;

import java.io.PrintStream;

import org.openjdk.jmc.commands.IExecute;
import org.openjdk.jmc.commands.Statement;

/**
 * Base class for commands that works against the current selected workbench part.
 */
abstract class UICommand implements IExecute {
	public static final String IDENTIFIER = "identifier"; //$NON-NLS-1$

	@Override
	public final boolean execute(final Statement statement, PrintStream out) {
		final Object object = ContextLookup.getContext(out);
		final String identifier = statement.getString(IDENTIFIER);
		if (identifier != null) {
			Traverser.visit(object, new IVisitor() {
				@Override
				public void visit(Object object, String text, String name) {
					if (identifier.equalsIgnoreCase(name)) {
						execute(object, statement);
					}
				}
			});
		}

		return false;
	}

	abstract protected void execute(Object control, Statement s);

}
